The SDH03-12S05W from Ideal Power Ltd is a DC to DC Converter with Input Voltage 4.5 to 18 V, Output Voltage 1 5 V, Output Current 1 600 mA, Isolation Voltage 1600 V, Operating Temperature -40 to 105 ºC. Tags: Through Hole, Buck-Boost. More details for SDH03-12S05W can be seen below.